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Autoinflammatory syndromes

Galeazzi M, Gasbarrini G, Ghirardelli A +8 more2006Clin Exp RheumatolBook Chapter
DermatologicalGastrointestinalImmune/InnateMusculoskeletal

Abstract

The autoinflammatory disorders are a new and expanding classification of inflammatory diseases characterized by recurrent episodes of systemic inflammation in the absence of pathogens, autoantibodies or antigen specific T cells. These disorders are caused by primary dysfunction of the innate immune system, without evidence of adaptive immune dysregulation. Innate immune abnormalities include aberrant responses to pathogen associated molecular patterns (PAMPs) like lipopolysaccharide and peptidoglycan, prominent neutrophilia in blood and tissues, and dysregulation of inflammatory cytokines (IL-1beta, TNF-alpha) or their receptors. The autoinflammatory diseases comprise both hereditary (Familial Mediterranean Fever, FMF; Mevalonate Kinase Deficiency, MKD; TNF Receptor Associated Periodic Syndrome, TRAPS; Cryopyrin Associated Periodic Syndrome, CAPS; Blau syndrome; Pyogenic sterile Arthritis, Pyoderma gangrenosum and Acne syndrome, PAPA; Chronic Recurrent Multifocal Osteomyelitis, CRMO) and multifactorial (Crohn's and Behçet's diseases) disorders. Mutations responsible for FMF, TRAPS, CAPS, PAPA are in proteins involved in modulation of inflammation and apoptosis.

Part of CIRS Nexus · Curated by Lauren Lowenstein, The Biotoxin Lady

Key Biomarkers

IL-1βLipopolysaccharide (LPS) responseNeutrophiliaPeptidoglycan responseTNF-α

Symptom Clusters

AcneArthritisOsteomyelitisPeriodic fever syndromePyoderma gangrenosumRecurrent systemic inflammation